Repairs:

Clyde Marine has bases in Europe and West Africa. We are however not geographically bound by this fact. We will travel anywhere at any time to carry out necessary repair work. One of the reasons that the company succeeds in a competitive market is the fact that we are so mobile and adaptable. there is nowhere on this planet that we are not prepared to get to quickly if we are needed.

Example Repairs and Information

A Typical Onsite Repair on a 4 x Blade Propeller
Propeller impact damage inspected & recorded	Propeller hub cleaned & inspected for cracks	Propeller blades cleaned & inspected for cracks	Propeller repaired and final polish applied

NB: The above repairs are carried out using NDT

On-Shaft Propeller Repair
Notched, cracked or bent on shaft propeller blade repair can also be done by Clyde Marine propellers. We quite often smooth/feather damaged tips. When required we will stop drill a crack to prevent propagation or crop a section of the blade, which has been damaged. After all repairs are completed, the balance is checked to ensure that there is no vibration, and the propeller is given a full polish. Clyde Marine will provide written and graphic reports on work undertaken for the vessels' records.

Propeller Inspection:

Onsite inspections can be carried out by our engineers:
   
To assess the extent of damage, recommend repairs, estimate repair cost, and if requested, the probable cause of damage. inspections will provide the owner with a forecast of necessary or recommended work to be done before next dry-docking. 

 

Propeller Polishing:

A properly polished propeller is a necessity and must be carried out by a competent organization. Failure to do so could lead to deterioration of the propeller leading to additional problems. A properly polished propeller will reduce slippage and increase vessel efficiency. If left untreated it will result in an increase of power absorption and for a fixed pitch propeller will result in a reduction of service rotational speed. Clyde Marine Propellers uses a variety of abrasives to polish your propeller to Rubert scale on the pressure face, suction face and the leading / trailing edges, and we will also reinstate the anti singing edge  .

 

There are many Causes of propeller damage ranging from:

Cavitation damage

This will occur in situations where the propeller is damaged such as the leading edge is torn or bent      

Maltreatment damage

This will occur in situations where the propeller is incorrectly handled, poor servicing allowing for surface deterioration
Incorrectly fitting or removing the propeller by severely heating the boss resulting in the boss cracking

In Service Mechanical Damage

This is the most common of them all and it can come from contact with floating debris , chains , cables , sand banks.

Wastage damage

All propellers will show damage throughout their service life due to wastage this is   quite normal  

Wastage is principally a process of corrosion and it is well known that when small anodic areas are adjacent to large cathodic surfaces a severe electrochemical attack takes place